Answer:
20
Step-by-step explanation:
The midsegment of a trapezoid is calculated as
=
=
= 20
Median is just the value that is neither the highest nor the lowest compared with the other values in the set
Mean is just the average of the numbers which is found out by adding up all the numbers then dividing the sum by the number of values in the set
Answer:
see explanation
Step-by-step explanation:
Given

= 
= 
Rationalise the denominator by multiplying the numerator/ denominator by 
Note that
×
= a
=
× 
= 
Answer:0.5(x+1.6)+1.4(3x+2.4)=9.8
Step-by-step explanation: